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3 years ago

C=2vpi r; solve for r

Mathematics

1 answer:

ankoles [38]3 years ago

4 0

Answer:

Step-by-step explanation:

I suspect that you actually meant C = 2π r, the formula for the circumference of a circle.

But if your C=2vpi r is correct, then dividing both sides of this equation by 2v*pi yields the desired equation:

r = ---------------

2v*pi

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PSYCHO15rus [73]

X = 4 and x = 6

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3 years ago

D Given: F is the midpoint of HE F GH I DE Prove: AHFG = AEFD H G Statement Reason

oksano4ka [1.4K]

Answer:

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Step-by-step explanation:

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3 years ago

A rectangle with a perimeter of 19m^2+2m-10 and a width of m^2 write an expression for the lenght

never [62]

Answer: $\frac{17}{2}m^2+m-5$

Step-by-step explanation:

By definition, the perimeter of a rectangle is:

$P=2l+2w$

Where "l" is the lenght and "w" is the width.

If you solve for "l":

$P-2w=2l\\\\l=\frac{P-2w}{2}$

In this case, you know that the following expression represents the perimeter of the rectangle:

$19m^2+2m-10$

And the width of that rectanle is represented wih this expression:

$m^2$

Therefore, based on the explained above, you can conclude that the lenght of that rectangle is given by:

$\frac{19m^2+2m-10-2(m^2)}{2}$

Finally, simplifying the expression, you get:

$=\frac{17m^2+2m-10}{2}=\frac{17}{2}m^2+m-5$

8 0

4 years ago

Solve for b.<br> 16 = a² + b^2

laiz [17]

Answer:

$\sqrt{(4-a)(4+a)} =b$

Step-by-step explanation:

16 = a^2 + b^2

16 - a^2 =b^2

4^2 - a^2 = b^2

$\sqrt{4^2 - a^2} =b$

$\sqrt{(4-a)(4+a)} =b$

7 0

3 years ago

662/3% of what number is 320?

sweet [91]

It's similar to example above,I hope you get it.

4 0

4 years ago